tattvenātaś cyavanti te

aham-I; hi-surely; sarva-of all; yajnanam-sacrifices; bhokta-enjoyer; ca-and; prabhuh-Lord; eva-also; ca-and; na-not; tu-but; mam-Me; abhijananti-know; tattvena-in reality; atah-therefore; cyavanti-fall down; te-they.